Trocar



FIG. 1 is a front view of the trocar;

FIG. 2 is a back view of the trocar;

FIG. 3 is a top view of the trocar;

FIG. 4 is a bottom view of the trocar;

FIG. 5 is a perspective view of the trocar;

FIG. 6 is a left view of the trocar; and,

FIG. 7 is a right view of the trocar. 

The ornamental design for a trocar, substantially as shown and described. 